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A parabola with vertex at origin has its focus at the centre of x2 + y2 – 10x + 9 = 0 Find the direction its directrix and latus rectum. |
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Answer» The centre of the circle = (5,0). The equation y2 = 20x ⇒ y2 = 4ax ⇒ a = 5 directrix is x = -5, LR = 20. |
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